Tetrabenzo

Methyl and Ethyl, 504 9-Fluorenylmethyl, 506 9-(2-Sulfo)fluorenylmethyl, 507 9-(2,7-Dibromo)fluorenylmethyl, 507 17-Tetrabenzo[a,c,gf,/]fluorenylmethyl, 508 2-Chloro-3-indenylmethyl, 508 Benz[f]inden-3-ylmethyl, 508... 

The close similarity in the isomer ratios obtained from different sources of the phenyl radical suggests that the mechanism of aryla-tion is independent of the nature of the reagent which generates the radical. This principle has been used in reverse in that the constancy of isomer ratios has been cited as evidence that the decomposition of lead tetrabenzoate gives free phenyl radicals. 

Pentaerythritol Tetrabenzoate, C33H2808, mw 552.55, OB to C02 -208.5% needles, mp 99—101° prepd by the action of Bz chloride on PE (Refs 1 2). A mixt of PETN with PE tetrabenzoate and a PE cinnamate (structure unspecified) has been patented as a progressive burning gun pro pint (Ref 3)... 

An unusual template reaction leads to the Ni11 complex of a tetrabenzo-N2S2 macrocyclic ligand (676) via C—Cl bond cleavage and C—S bond formation according to Equation (25).1701... 

That is, just as oxidation of tetrabenzo[5.5]fulvalene resulted in formation of two antiaromatic fluorenyl cations linked by a single bond, reduction should give two aromatic fluorenyl anions, linked by a single bond, 20. We call this relationship the aromaticity/antiaromaticity continuum and can apply the same measures of aromaticity to 20 as were applied to 3, to evaluate relative aroma-... 

Fig. 5 Layer structure of (tetrabenzo [24] crown-8)(dibenzylammonium)(PF6) held together by weak C-H...F hydrogen bonding between the pseudorotaxane and PFg. Only N-H hydrogens shown [32]...

AR Brown, SL Irving, R Ramage, G Raphy. (17-tetrabenzo[a,c,g,i]fluorenyl)methyl chloroformate (Tbfmoc-Cl) a reagent for the rapid and efficient purification of synthetic peptides and proteins. Tetrahedron Lett 51, 11815, 1995. 

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